Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: United States

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.57.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 45921
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.57.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:38:30 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 57.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 57.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
175.37.101.160 attack
unauthorized connection attempt
2020-02-07 20:51:35
178.35.164.7 attackbots
unauthorized connection attempt
2020-02-07 20:57:09
85.228.192.67 attackbotsspam
unauthorized connection attempt
2020-02-07 21:25:18
83.31.21.154 attack
unauthorized connection attempt
2020-02-07 20:49:15
126.226.33.41 attack
unauthorized connection attempt
2020-02-07 21:23:30
146.99.245.142 attackbotsspam
unauthorized connection attempt
2020-02-07 21:18:06
88.248.143.151 attackspambots
unauthorized connection attempt
2020-02-07 21:11:58
106.12.61.64 attack
$f2bV_matches
2020-02-07 20:53:15
176.205.12.57 attackbotsspam
unauthorized connection attempt
2020-02-07 21:17:39
41.67.53.134 attackspam
unauthorized connection attempt
2020-02-07 20:54:22
45.94.7.251 attackbotsspam
unauthorized connection attempt
2020-02-07 21:14:24
114.41.2.2 attackspambots
unauthorized connection attempt
2020-02-07 20:52:39
14.231.193.2 attackspam
2020-02-0705:54:361izvf2-0001nP-1E\<=verena@rs-solution.chH=\(localhost\)[196.246.210.147]:32944P=esmtpsaX=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:verena@rs-solution.chS=2032id=F5F046151ECAE4578B8EC77F8B44F4C0@rs-solution.chT="maybeit'sfate"forframercw@yahoo.com2020-02-0705:53:101izvdd-0001gX-PS\<=verena@rs-solution.chH=\(localhost\)[14.231.193.2]:52305P=esmtpsaX=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:verena@rs-solution.chS=2133id=4247F1A2A97D53E03C3970C83C8363C0@rs-solution.chT="areyoulonelytoo\?"forsexyatready@gmail.com2020-02-0705:52:451izvdE-0001dU-4L\<=verena@rs-solution.chH=\(localhost\)[200.59.53.131]:52921P=esmtpsaX=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:verena@rs-solution.chS=2261id=232690C3C81C32815D5811A95DAF0E43@rs-solution.chT="girllikearainbow"forhalversonandrew661@gmail.com2020-02-0705:53:471izveE-0001j1-2W\<=verena@rs-solution.chH=\(localhost\)[111.224.167.95]:45126P=esmtpsaX=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dove
2020-02-07 21:02:29
24.162.187.97 attackbotsspam
unauthorized connection attempt
2020-02-07 21:28:22
78.167.219.127 attackspambots
unauthorized connection attempt
2020-02-07 21:19:25

Recently Reported IPs

104.21.57.45 104.21.57.53 104.21.57.4 23.135.169.3
104.21.57.6 104.21.57.64 104.21.57.63 104.21.57.68
104.21.7.77 104.21.57.62 104.21.57.78 104.21.57.61
104.21.57.88 104.21.57.73 104.21.57.84 104.21.57.79
104.21.57.91 104.21.57.94 104.21.58.110 104.21.58.119